Modbus register assignment of the ISOMETER®
35
isoGEN523_D00320_04_M_XXEN/06.2018
8.1.2.1
Float = Floating point value of the channels
Representation of the bit order for processing analogue measured values according to IEEE 754
S
= Sign;
E
= Exponent;
M
= Mantissa
8.1.2.2
AT&T = Alarm type and test type (internal/external)
Wo
rd
0x00
0x01
Byt
e
HiByte
LoByte
HiByte
LoByte
Bit
31
30
24
23
22
16
15
8
7
0
S E E E E E E E E M M M M M M M M M M M M M M M M M M M M M M M
Bit
7
6
5
4
3
2
1
0
Meaning
T
e
st
e
x
te
rnal
T
e
st
in
te
rnal
Res
e
rv
ed
Res
e
rv
ed
Res
e
rv
ed
Alarm
Fa
u
lt
A
larm t
y
pe
X
X
X
X
X
0
0
0
No alarm
X
X
X
X
X
0
0
1
Prewarning
0
0
X
X
X
0
1
0
Device error
X
X
X
X
X
0
1
1
Reserved
X
X
X
X
X
1
0
0
Warning
X
X
X
X
X
1
0
1
Alarm
X
X
X
X
X
1
1
0
Reserved
X
X
X
X
X
…
…
…
Reserved
X
X
X
X
X
1
1
1
Reserved
Te
st
0
0
X
X
X
X
X
X
No test
0
1
X
X
X
X
X
X
Internal test
1
0
X
X
X
X
X
X
External test
